Date of birth: 1977
Name: Abbas
Nayebi
Date
of birth: 1977
info [a t] nayebi.com
Modification date: 2010 Aug.
B.Sc. : 1994 - 1998, Hardware
Engineering, University of Tehran, Avg 17.2 / 20 (first rank)
M.Sc.
: 1998 - 2001, Software Engineering, Sharif university of technology,
Avg 17.53 / 20
Rank in national M.Sc. entrance exam : 3'rd in the
country
Ph.D. : 2004-2009, Computer Architecture (Wireless
Networks), Sharif University of Technology, Avg: 19.62 / 20
- Internet engineering
-
Internet engineering
- Introduction to internet
- Design of
algorithms
- Discrete mathematics
- System analysis and design
- Computer science basics
- Software engineering
- Advanced
programming
- Programming in C
- Advanced topics : Java
-
Advanced topics : Web design
- Documentation of information
systems
-
Programming
- Computer basics
-
Data structures
- Advanced programming
-Initiating
the project of ERP system development for RIPI (SYP) and leading the
12 people team, 2004-2009
-Development of a comprehensive network
simulator (Xmulator), 2005-2009
-Development of a commercial chat
software (Glassroom), 2000-2004
-Development of an ECG software
for Davinsa company (Tapesh Negar), 1995-2000
-Initiating the
"New technologies in education and research" office of
IAUQ, 2003
-Coach of the first ACM programming contest team of
Islamic Azad Uni. Of Qazvin, 2002-2003
-Initiating the RIPI
engineering software development team, 2009
-Initiating the RIPI
high performance computing office, 2009
-Webmaster of Islamic
Azad Uni. Of Qazvin. Starting the first website of the univ.,
2000-2003
-Internship at LMTS laboratory of EPFL University,
Switzerland (2 months), 2008
-Research visit at KTH University (6
months), 2008
-Manager of technical committee of the first
Iranian Mechatronics Conference, 2003
-Renovating the website of
Research Institute of Petroleum Industry (RIPI), 2004
-
Software design
- Digital signal processing
- Voice and sound
processing
- Java programming
- Internet and web programming
-
Web design
- Programming to control hardware
- Network
systems
- Software architecture
- System analysis and design
-
RUP software development process / UML
- Enterprise applications
- O/R Mapping
- Hibernate, NHibernate, Log4j, Log4net, Nant
-
Developing multilayer distributed enterprise applications in C#.NET
environment
- Java ( more than 40,000 lines
of code )
- Visual C++ ( more than 30,000 lines of code )
- C
and C++ ( more than 20,000 lines of code )
- C# ( more than 80,000
lines of code )
- PHP
- JSP
- HTML, and Javascript
-
ASP
- J2EE
- ASP.NET
- X86 and 68K assembly language
"Beaconing in Wireless Mobile Networks", EuroNF workshop on wireless and mobility, Stockholm, Sweden, October 23-24 2008.
"Neighbor Discovery in Mobile Networks", Iran Telecom. Research Center (ITRC), Feb. 2009.
A. Nayebi, H. Sarbazi-Azad,
Fault-tolerant routing in multicomputers, The Computer Report (A
bi-monthly publication of the Informatics Society of Iran), No. 168,
pp. 11-21, 2006. (Powerpoint
format, pdf
format)
A. Nayebi, A. Dehesh, A. Khosravi, and H.
Sarbazi-Azad, "An Introduction to Mobility in Wireless Sensor
Networks and Wireless Ad hoc Networks", Technical report
#HPCAN-TC-07-101, HPCAN lab., Sharif Uni. of Tech., Iran, 2007.
Abbas Nayebi and Gunnar Karlsson, “Neighbor Discovery
in Mobile Wireless Networks,” Technical Report
#TRITA-EE_2008_066, Royal Institute of Technology (KTH), Sweden,
2008.
• Abbas Nayebi, Hamid Sarbazi-Azad, "Analysis of k-Neigh Topology Control Protocol for Mobile Wireless Networks," Computer Networks, Vol 53, Issue 5, pp. 613-633, doi: 10.1016/j.comnet.2008.10.024, Elsevier, 2009. PDF
• Hamid Shokrzadeh, A. T. Haghighat, Abbas Nayebi, "New routing framework base on rumor routing in wireless sensor networks," Computer Communications, Vol. 32, Issue 1, pp. 86-93, doi: 10.1016/j.comcom.2008.09.027, Elsevier, 2009.
• A. Nayebi, Hamid Sarbazi-Azad, and Gunnar Karlsson, “Performance Analysis of Opportunistic Broadcast for Delay-Tolerant Wireless Sensor Networks,” Journal of Systems and Software, Vol. 83, Issue 8, pp. 1310-1317, Elsevier, Aug. 2010.PDF
• R. Moraveji, H. Sarbazi-Azad, A. Nayebi, K. Navi, “Modeling the Effects of Hot-spot Traffic Load on the Performance of Wormhole-Switched Hypermeshes,” To be appeared in Computers & Electrical Engineering, Elsevier.
• A. Nayebi, Gunnar Karlsson, Hamid Sarbazi-Azad, “Neighbor Discovery in Mobile Wireless Networks,” to be appeared in to Ad hoc Networks, Elsevier. PDF
• A.Nayebi, "Improving Dynamic Spectrogram using Inverse Color Method and Base-band Representation," In Proc. of ICEE 2005, 2005.
• A. Khonsari, M. Ould-Khaoua, A. Nayebi, H. Sarbazi-Azad, "The impact of timing constraints on virtual channels multiplexing in interconnection networks," Proceedings of 25th IEEE International Performance Computing and Communications Conference (IPCCC’06), March 28-30, 2006, Phoenix, Arizona, USA.
• A. Nayebi, M. Rahimi, H. Sarbazi-Azad, "Time-based Random Waypoint Mobility Model for Wireless Mobile Networks," Proceedings of The Australian Telecommunication Networks and Applications Conference (ATNAC2006), Dec. 4-6, 2006, Melbourne, Australia. PDF
• A. Nayebi, M. Rahimi, H. Sarbazi-Azad, “Analysis of time based random waypoint mobility model for wireless mobile networks,” Proceedings of International Conference on Information Technology- New Generations (ITNG2007), IEEE Press, April 2-4, 2007, Las Vegas, USA.
• A. Nayebi, A. Khosravi, H. Sarbazi-Azad, "On the Link Excess Life in Mobile Wireless Networks," Proceedings of International Conference on Computing:Theory and Applications ICCTA, IEEE Press, India, 2007. PDF
• A. Nayebi, A. Khosravi, H. Sarbazi-Azad, "The impact of stationary nodes on the performance of wireless mobile networks," Third International Conference on Wireless and Mobile Communications (ICWMC2007), IEEE Computer Society Press, March 4-9, 2007, Guadeloupe, French Caribbean.
• S. Meraji, A. Nayebi, H. Sarbazi-Azad, "Empirical Performance Evaluation of Adaptive Routing in Necklace Hypercubes: A Comparative Study," Proceedings of International Conference on Computing:Theory and Applications ICCTA, IEEE Press, India, 2007.
• A. Nayebi, S. Meraji, A. Shamaei, H. Sarbazi-Azad, "Xmulator: A listener-based integrated simulation platform for interconnection networks," Proceedings of Asian Modelling Symposium (AMS2007), IEEE Press, Thailand, 2007. PDF
• A. Nayebi, A. Shamaei, S.G. Miremadi, "Traffic Analysis of f-cube Fault-Tolerant Routing Algorithm in Mesh Interconnection Networks", In Proc. of CSICC, Iran, 2007.
• A.Shamaei, A. Nayebi, H. Sarbazi-Azad, "Performance Evaluation of Fault-Tolerant Routing in Mesh Interconnection Networks", In Proc. of CSICC, Iran, 2007.
• A. Nayebi, A. Shamaei, H. Sarbazi-Azad, "Improving of f-cube fault-tolerant routing algorithm based on detailed traffic analysis," In proc. of HPCC 2007, Houston USA, LNCS 4782, pp. 766-775, Springer, 2007.
• R. Moraveji, H. Sarbazi-Azad, A. Nayebi, K. Navi, "Performance Modeling of Wormhole Hypermeshes under Hotspot Traffic," LNCS 4649, Computer Sceience-Theory and Applications, Springer, Sep. 2007.
• S. Meraji, A. Nayebi, and H. Sarbazi-Azad, "Simulation-Based Performance Evaluation of Deterministic Routing in Necklace Hypercubes," In proc. of AICCSA 2007, Jordan, IEEE Press, 2007.
• A. Nayebi, H. Sarbazi-Azad, and K. Alishahi, “Analysis of k-Neigh Topology Control Protocol for Wireless Networks,” In Proc. of HWISE-2008 workshop (AINA), 2008.
• H. Shokrzadeh, A. T. Haghighat, A. Nayebi, F. Tashtarian, “Directional Rumor Routing in Wireless Sensor Networks,” In Proc. of ICI 2007, IEEE Press, Tashkent, Uzbekistan, 2007.
• ** A. Nayebi and H. Sarbazi-Azad, “Lifetime Analysis of the Logical Topology Constructed by Homogeneous Topology Control in Wireless Mobile Networks,” In Proc. of 13th International Conference on Parallel and Distributed Systems (ICPADS2007), IEEE Press, Hsinchu, Taiwan, 2007.
• A. Nayebi, H. Sarbazi-Azad, "Analysis of the Effect of Nodes’ Mobility on the Performance of Wireless Networks," (in Persian) In Proc. of The First International E-city Conference, Tehran, Iran,2008.
• Arash Shamaei, Abbas Nayebi, Hamid Sarbazi-Azad, “Fault-tolerance improvement of planar adaptive routing based on detailed traffic analysis,” In proc. of 22nd international symposium on Computer and information sciences (ISCIS), IEEE Press,2007.
• H. Shokrzadeh, M. Mashaiekhi, A. Nayebi, “Improving Directional Rumor Routing in Wireless Sensor Networks,” In Proc. of The 4th International Conference on Innovations in Information Technology, IEEE Press, November 18 – 20, UAE, 2007.
• Mohammad Mirza-Aghatabar, Arash Tavakkol, Hamid Sarbazi-Azad, Abbas Nayebi, "An Adaptive Software-Based Deadlock Recovery Technique," In Proc. of AINA, pp. 514-519, IEEE Press, Japan, 2008.
• Arash Shamaei, Abbas Nayebi, Hamid Sarbazi-Azad, "A Simple and Efficient Fault-Tolerant Adaptive Routing Algorithm for Meshes," LNCS 5022, Algorithms and Architectures for Parallel Processing, pp. 54-57, Springer, 2008.
• Abbas Nayebi, Gunnar Karlsson, “Beaconing in Wireless Mobile Networks,” In Proc. of IEEE Wireless Communications and Networking Conference (WCNC), Budapest, 2009.
• Abbas Nayebi, Hamid Sarbazi-Azad, and Gunnar Karlsson, “Routing, Data Gathering, and Neighbor Discovery in Delay-Tolerant Wireless Sensor Networks,” In Proc. of IEEE International Parallel & Distributed Processing Symposium (IPDPS), Rome, 2009.
Design
and implementation of a 30 channels audio card in Iran's
Telecommunications Research Center.
In this project, an ISA
card was designed to capture 30 voice channels concurrently and
played one voice channel. Incoming signals were multiplexed (TDM) and
then sampled with a 12 bits flash A2D and sent to computer memory
through DMA channels. Since, capturing of 30 channels needs a lot of
bandwidth and buffer memories, interrupts and DMA were extensively
used in this project and all the buffer on the board was eliminated.
For this purpose, the main memory of computer was used instead of
limited and expensive buffers on board.
Sound
visualization using human auditory model.
Signal processing
researchers need a tool to help them realize characteristics of audio
signals. One of these tools can be a sound visualizer. A sound
visualizer is the means for converting an audio signal into a static
picture or a movie, illustrating the time-frequency properties of
sound. Other application of this tool can be in : aid for the deaf,
music training, etc.
Different methods for sound visualization
have been proposed. Among them are traditional spectrogram,
cochleagram, correlogram, and dynamic spectrogram. In this thesis two
new ideas were proposed to improve dynamic spectrogram, the first was
the base-band representation of filter outputs and the second was
inverse color mapping. A software tool was also developed for testing
the efficiency of different methods and some experiments were carried
out using this tool.
The software was developed in VC++
environment and voice signal was captured from microphone or a wave
file and an AVI movie for dynamic spectrogram was made.
In this project, an IP-based RPC system was developed for LANs. This system included a service registration, a network interface, and a user interface sub-systems.
I
started my experience in electronics when I was just 10 years old. My
brother taught me the basics of electronics in a simple language. I
was trying to build some interesting devices like radio transmitters
and receivers, amplifiers, alarm systems, and many other ones.
After
some years, I started the computer science by my first computer : A
Commodore 64 , a simple home computer with 64KB of memory and a tape
device to store programs. I wrote many little programs in BASIC and
Pascal using this computer and after some years I switched to an
Amiga 500 and after a while to an Amiga 1200. It was more serious and
I could write programs in 68000 assembly and C. Amiga systems had
many advantages in OS design, indeed, Amiga was a very well designed
system in those days. I don't write programs for Amiga anymore, but
Amiga has made my foundations of thinking and designing, indeed, I
learned how to design and develop robust , stable, and scalable
software and systems.
I wrote many programs for Amiga, most of
them were a mixture of assembly and C code to execute faster. I wrote
a 3D viewer system with polygon graphics with my little knowledge in
this field and my hard effort.
I also participated in a computer
graphic team to make TV ads. I made some ads and learned many useful
things about graphic rules, used many years later to design web
sites.
Here, I list some of projects I've already developed.
It's only a part of my programs. Actually, I spent a considerable
part of my life on my computer 's console. One of my friends has made
a joke about me that I earn energy from monitor rather than food :)
This
was a software package I published in my country, Iran. The purpose
of this software was to change Amiga's environment to support Farsi
language. As you know Farsi language is written from right to left
which is an important matter.
This system was my first experience
in commercial software and thought me many things about business of
software and commercial software.
This system was developed in C
and assembly.
This was a Farsi to English and English to Farsi dictionary developed for Amiga and published nationwide.
This is a tool to generate dynamic and static spectrogram. This software is developed in VC++.
A software tool to execute an automatic graded test from subjects and storing the results. This software is specially designed to help audio researches to get fair tests from subjects.
This
project started at 1995 in Davinsa medical equipments company. The
goal of project was to control treadmill system and executing stress
test protocols like Bruce, modified Bruce, and Corner and gathering
ECG signal at the same time and storing the signal in an internal
database. The input ECG signal has a lot of noise and the program
must eliminate all of them by applying special digital filters. There
is a filter to suppress DC changes caused by movements of patient at
extremely low frequencies in range of 0.2 to 0.5 Hertz. There is
another notch filter to suppress the 50 Hz power line noise and a
filter to suppress high frequency noises.
Although the first
version of the program was written in MS-DOS environment but it had a
smart GUI. After 2 years the project upgraded to Windows 95 in Visual
C++ environment.
This software is currently used in more than 70
medical centers and hospitals in Iran.
Some of the features of
this software are :
-High performance : It's a real-time system
that must do many jobs like gathering signals, filtering, scrolling
the signal on monitor, storing data, interacting with user,
controlling the treadmill, and executing the protocols ! in a fully
non-real-time operating system.
-Reliability : Any bug in this
software is dangerous and may lead to death of patient ! But this
software has shown a high level of reliability.
-Multitasking (
specially in MS-DOS )
-Well designed to have a long life time :
Core software has not been re-designed yet.
This project started at 2000 in Sazman-e Hamyari-e Shahrdarihay-e Qazvin ( a semi-private organization ). The goal of project was to create a voice chat software that support Farsi and English languages. This software had two parts : Client (applet) and a Server both in Java. Duration of this project was 1 year.
After success in the previous project, I decided to build a more powerful chat system with more features and more users. I contacted www.salamiran.com one of the most famous Iranian websites with a lot of visitors, and the result was a leading chat software.
Having
obtained experience of the two last projects, I decided to build a
commercial package. Hence, I established www.ChatEssentials.com and
started the new project consisting the following parts :
- A high
performance, highly stable, and reliable server
- A smart looking,
flexible, and stable client ( a java applet )
- An ActiveX
component to capture and play voice. GlassRoom is the first half
ActiveX half applet chat.
- An installer built by InstallShield
environment
- Perl and shell scripts to execute the software in
Linux
- A VC++ program to start the program as an NT service.
-
A control panel with Servlet technology.
I learned many things
from this project:
- World-wide software marketing issues
-
Promotion
- Targeted advertisement
- Remote debugging and
administration of software
- E-management
- Establishing work
groups through internet.
I must confess that was very hard !
A remote management system to create and manage chat hosts in windows and Linux servers (All in JSP).
An online support and online help system.
A Windows based RADIUS server (accomplished to module design stage).
This was a project to control a mechanical puncher used in textile companies.
In this minor project all the web pages of RIPI website were reviewed and major changes made in graphical design and structure of website. More over, former system of library was analyzed and a sub-system for magazines was added to the system. This software was developed in .Net Environment.
This is a web-based software
developed in .Net environment to hold an electronic election in RIPI.
This package exposes some features like :
-Voter management
-Candidate management
-Email-based voting
-Candidates'
personal profile editor, ...
This software was developed in about
two weeks and was my first practical project in .Net environment.
This framework consists of the following parts:
- O/R Mapping : In this part,
NHibernate is used as a well known package in this field. NHibernate
is fully studied, tested, and modified to accompany with system
requirements.
- Transactions : An open source package for handling
transactions and defining transactional contexts is used. This
package is totally modified to support NHibernate sessions.
- Code
security : All the business facade methods are protected by
role-based security attributes.
- Authentication : ASP.Net
form-based authentication is used. A piece of code is added to
support code security concepts.
- Authorization : Roles are stored
in an XML file. Two levels of roles are considered : super-roles and
normal roles. A Principal class is developed to accommodate
role-based security. Some parts of Microsoft Application Block for
Authentication and Authorization is used.
- Configuration : A
flexible, XML-XSD based, visually configurable framework is developed
to store and retrieve configuration for each application and for the
framework from XML files. System is sensitive to changes of XML files
made everywhere.
-UI Security : A special package is developed to
support UI security issues. Some attributes are defined as extensions
to the standard HTML tags to support role-based permissions in UI
web-controls.
This project is defined in RIPI to provide an integrated system for 17 areas in 2004. RUP software development process is used. A minor project is defined to develop a minor part of the system for the first phase. A three-tire structure with a suitable layering and flexible distribution framework make a unique architecture for the software. Service oriented concepts are considered in designing the system.
During the internship in the EPFL University, Switzerland (2008 Feb.-Mar.), I proposed a framework for a special category of sensor networks targeted for space born applications.
It is a general object-oriented event-based simulation software, which is mainly developed to simulate Interconnection Networks and Wireless Networks. The package is used and extended by more than 20 students for their own research projects. The software is developed on a multi-layer architecture in C# language. Xmulator Project
Contact : info (at) nayebi.com